Soap



Patented Oct. 29, 1929 UNITED STATES PATENT OFFICE SOAP No Drawing.

This invention concerns a new product which consists in a soapy compound of a dissolving power which, up to now, has not been attained by the different existing soapy compounds or known soaps.

The new product enables one to employ a cold treatment and to avoid rubbing, and it can be used for. all kinds of cloth, fabric,

tissues, etc, with notable rapidity and perfection, and without injuring in the least the textures and their resistance.

It consists essentially in a soap which, in its consistency, can be graduated at will; its basic part is constituted by a common soap with a neutral reaction to which a mixture is added, which is made up by any of all the various fatty sulphurous acids and their salts, organic as well as inorganic sulphurous acids, such as sulphurous ricinus extracts, sulphurous oils, etc., formed by the action of sulphuric acid or concentrated sulphuric acid upon fatty acids and neutral fats, as well as upon the residues of peanut, cotton grain cakes, etc., or any other fatty substance of other origin.

This addition of fatty sulphurous acids or their salts, of organic or inorganic origin, has the property which, up to now, was unknown, to stimulate the detergent and emul- 3o sive action of the soap solution, increasing it through their own emulsive action which, at the same time, gives to the emulsions more consistency. It furthermore enables to add,

through a previous mixture, a certain percentage of a liquid detergent hydrocarbon such, for example, as gasoline or kerosene which has the mission to dissolve, at'the same time as other substances, those parts which, during washing, would not have re- 4 acted to the action of the other ingredients of the formula. The addition of sulphate of soda serves the purpose of stabi izing the emulsion which is formed by the soap and the other ingredients of the formula, facilitating thus the rinsing and neutralizes the sulpho-greases and augments the solubility of the soap in mineral waters, thereby assisting in the formation of a lather. The sodium sulphate also increases the density of the wash liquid in which the present product is mains suspended in the wash liquid.

Application filed June 8, 1927. Serial No. 197,523.

employed, and permits the components of the product to maintain in a seudocolloidal suspension the different su stances which are generally formed by the dirt in textures, by grease, animal fats, vegetal or mineral fats, etc. When the soap through hydrolysis, through differences in the superficial tension, through absorption, or other means has penetrated the fiber of the texture and has interrupted the adherence of the dirt to the same, a solution or wash liquid such as is obtained from the present composition is .required so as to assure that the separation is definite and that the separated matter re- By the term common soap as herein employed, there is meant a soap based upon a tallow, resin or a saponified coco oil or other fatty oils or materials commonly employed in the making of soap, witha solution of caustic alkali, manufactured in the usual manner without any special procedure, because the soap which is manufactured serves only as a vehicle for the mixture which is herein detailed; and it is this mixture which increases Y 2 18 33 2) 3 3 5 2 4 42 73 125 6S0 +4H O +4O H ,O Upon a fatty acid (3 E 0, +H SO aC l-I O +H O 30,. Upon castor oil The first and third of the above reactions give rise to a sulphurous oil in each case, while the second reaction produces a fatty sulphurous acid.

The new product is obtained by mixing the following materials which can vary in their proportions as is stated in the formula which is given hereafter:

Common soap 1000 grams Fatty sulphurous acid orits salts 100 to 500 grams Hydrocarbon 100 to 500 grams Sulphate of soda 200 to 500 grams Water 100 to 500 grams To the specified components an appropriate coloring matter can be added to give a better appearance, as well as any other matter which may contribute to its consistency or preservation.

Up to now, those fatty sulphurous acids and their salts have been employed only in cloth printing in the preparation of cotton tissues, and particularly for fixing red aniline colors, from which the oil for Turkish red derives its name. They furthermore are used in textures, when soaking in the preparation for softening, as well as in tanning to avoid the hides getting hard during the process, and also as an emulsive lubricant in the metal industry for polishing purposes etc., and in pharmacy as a vehicle for difficult 1y soluble substances.

It is therefore evident that the addition of any fatt sulphurous acid or their salts, sulphate o soda and non-aqueous hydrocarbon to a soap paste which has been obtained by common proceedings, constitutesa new industrial product which can be used for the same purposes as common soap, but possessing a solvent, detergent and emulsive power which is various times greater to such a point that its action is almost instantaneous and perfect when hands or other superficies are to be washed which are stained by oil, grease, etc. A small quantity dissolved in warm water cleans fabrics in a few minutes, whereas it has a less pronounced, but still Very strong action in cold water. Once the fabrics or other objects which are to be washed,

are exposed to the action of this product, it

only remains to rinse them in clean water, without rubbing them, and they will be without filthiness.

Having now described and specified the nature of my invention, and the manner of putting it into practice, what I claim as my property and invention is 1. A detergent comprising abase of a water soluble soap together with a fatty sulphonated compound, non-gaseous detergent hydrocarbon, sodium sulphate and water, the said base being in substantial excess over each of the remaining constituents.

2. A detergent comprising a base of a water soluble soap together with a fatty sulphonated compound, non-gaseous detergent liquid hydrocarbon, sodium sulphate and water, the said base being present in from two to ten times the amount of each of the phate 200 to 500 grams, water 100 to 500 grams.

' HECTOR EULALIO CROCCO. 

